A meter terminal clip structure for voltage testing

Abstract

The application discloses a kind of cooperation voltage test's measurement terminal terminal clamp structure, belong to electric power detection auxiliary device technical field;It includes measurement terminal box;Several wiring holes are provided in measurement terminal box;Corresponding wiring terminal is installed at wiring hole position;One end of wiring terminal passes through wiring hole and is connected with the lead wire of the back of measurement terminal box, the other side is left in the inside of measurement terminal box, still be provided with the movable auxiliary clamping head on measurement terminal box;Through hole is opened on auxiliary clamping head, and detachably mounted with positioning clamping piece at through hole;One end of positioning clamping piece is attached with the side of wiring terminal left in measurement terminal box, and the other end is connected with wiring clamp;The application effectively solves the connection instability between the currently used conventional measurement terminal and test terminal clamp, and there is a certain safety risk.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power detection auxiliary device, in particular to a metering terminal connection clamp structure matched with voltage test. BACKGROUND

[0002] The metering terminal is commonly used in the electric facility place, and is a connection terminal for assisting the inspection of the power system. The current commonly used connection test instrument is usually a common crocodile clamp structure. In specific use, the crocodile clamp is clamped on the connection terminal of the metering terminal for electrical connection. However, this structure has a very obvious problem, that is, the connection terminal of the metering terminal is generally screwed, which makes the crocodile clamp easy to slip when installed on the connection terminal, thereby causing a short circuit safety risk. This is the main problem currently faced. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a metering terminal connection clamp structure matched with voltage test, so as to solve the problem of unstable connection between the current commonly used metering terminal and the test connection clamp, and the safety risk.

[0004] To solve the above problems, the present application provides the following technical scheme:

[0005] A metering terminal connection clamp structure matched with voltage test, comprising a metering terminal box, a plurality of connection holes are arranged in the metering terminal box, a connection terminal head is correspondingly arranged at the position of the connection hole, one end of the connection terminal head penetrates through the connection hole and is connected with the lead wire at the back of the metering terminal box, and the other side is arranged in the inside of the metering terminal box, a movable auxiliary clamping head is further arranged on the metering terminal box, a through hole is formed in the auxiliary clamping head, and a positioning clamping piece is detachably arranged at the through hole, one end of the positioning clamping piece is arranged in close contact with the side of the connection terminal head left in the metering terminal box, and the other end is arranged in connection with the connection clamp.

[0006] Preferably, a cover plate is hingedly arranged on the outside of the metering terminal box, and the cover plate is a plate-shaped structure made of transparent plastic material.

[0007] Preferably, a guide groove is formed on the upper and lower top end faces of the metering terminal box, the guide groove is arranged along the length direction of the metering terminal box, and the auxiliary clamping head is movably arranged on the metering terminal box through the guide groove.

[0008] Further, the guide groove is a through groove with a notch cross section, which is a drop-shaped structure with a strip-shaped upper part and a circular lower part, a clamping groove is further arranged at the position corresponding to the connection hole on the guide groove, and a clamping plate matched with the clamping groove is arranged on the auxiliary clamping head.

[0009] The auxiliary clamping head is preferably a hook-shaped plate structure with a cross-section shape of a similar "η", and the position of the through hole in the auxiliary clamping head corresponds to the position of the wiring hole in the meter terminal box.

[0010] Preferably, the vertical length of the auxiliary clamping head is not more than half of the height of the inner cavity of the meter terminal box.

[0011] Preferably, a storage bin for placing two auxiliary clamping heads and a plurality of positioning clamps is arranged on the outside of the meter terminal box.

[0012] Preferably, the wiring end is a bolt with a countersunk threaded hole at the top; the positioning clamp is a metal double-headed screw structure, and an insulating sleeve is fixed in the middle of the positioning clamp; the wiring clamp is a butterfly screw; the hand-tightening end of the butterfly screw is supported by an insulating material, and a connecting wire is installed at the tail thereof.

[0013] The present application has the following beneficial effects:

[0014] 1. The wiring structure of the original alligator clip is changed to connect the wiring end of the meter terminal box and the wiring clamp of the testing instrument by the two ends of the positioning clamp, thereby improving the stability of the device during detection and reducing the safety risk.

[0015] 2. In order to adapt to the structure of the positioning clamp, the conventional meter terminal box is further processed, the corresponding position of the positioning clamp is adjusted by setting a guide groove and an auxiliary clamping head on the meter terminal box, and contact between the positioning clamp and other wiring ends is prevented.

[0016] 3. The structure of the positioning clamp and the wiring clamp is processed, the double-headed bolt and the butterfly screw are used to realize mutual connection, and an insulating sleeve is arranged on the positioning clamp to improve the insulation performance of the device and prevent electric shock accidents. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the device in the embodiment;

[0018] Figure 2 is Figure 1 is a right view of the device after the cover plate structure is removed;

[0019] Figure 3 is a three-dimensional structure schematic view of the auxiliary clamping head in the embodiment;

[0020] Marked: 1, meter terminal box, 1A, wiring hole, 2, cover plate, 3, wiring end, 4, auxiliary clamping head, 5, positioning clamp, 5A, insulating sleeve, 6, wiring clamp. DETAILED DESCRIPTION

[0021] The application will be further described in conjunction with the drawings and specific embodiments.

[0022] Embodiment

[0023] With reference Figure 1 The embodiment provides a metering terminal wiring clamp structure matched with voltage testing. The metering terminal box 1 is provided with a plurality of wiring holes 1A, wiring end heads 3 are arranged at positions of the wiring holes 1A, one end of the wiring end head 3 penetrates through the wiring hole 1A and is connected with a wire at the back of the metering terminal box 1, the other side of the wiring end head 3 is arranged in the metering terminal box 1, a movable auxiliary clamping head 4 is arranged on the metering terminal box 1, a through hole is formed in the auxiliary clamping head 4, a positioning clamping piece 5 is detachably arranged in the through hole, one end of the positioning clamping piece 5 is arranged in close contact with one side of the wiring end head 3 arranged in the metering terminal box 1, and the other end of the positioning clamping piece 5 is connected with a wiring clamp 6.

[0024] A cover plate 2 is hingedly arranged on the outside of the metering terminal box 1, and the cover plate 2 is made of a transparent plastic material and has a plate structure.

[0025] A guide groove 1A is formed on the upper and lower top end faces of the metering terminal box 1, the guide groove 1A is arranged along the length direction of the metering terminal box 1, and the auxiliary clamping head 4 is movably arranged on the metering terminal box 1 through the guide groove 1A.

[0026] The guide groove 1A has a notch cross section shape, is a through groove with a strip-shaped upper part and a drop-shaped lower part, one side of the auxiliary clamping head 4 is matched with the cross section shape of the guide groove, a clamping groove is arranged on the guide groove 1A at a position corresponding to the wiring hole 1A, and a clamping plate matched with the clamping groove is arranged on the auxiliary clamping head 4.

[0027] The auxiliary clamping head 4 has a hook-shaped plate structure with a cross section shape similar to “η”, and a through hole formed in the auxiliary clamping head 4 is arranged at a position corresponding to the position of the wiring hole of the metering terminal box 1.

[0028] The vertical length of the auxiliary clamping head 4 is not more than half of the height of the inner cavity of the metering terminal box 1.

[0029] A storage bin is arranged on the outside of the metering terminal box 1 and used for placing two auxiliary clamping heads 4 and a plurality of positioning clamping pieces 5.

[0030] The terminal head is a bolt with a tapped hole in the top; the positioning clamp 5 is a metal double-end screw structure, and an insulating sleeve 5A is fixed in the middle of the positioning clamp 5; the wire clamp 6 is a butterfly screw; the hand-tightening end of the butterfly screw is supported by an insulating material, and a connecting wire is installed at the tail end. In this embodiment, an anti-skid thread is also provided on the outside of the insulating sleeve 5A. It should be noted that, considering that the cooperation between the threaded structure terminal head and the positioning clamp is connected by threads, it is possible that the lower part of the terminal head will be loosened during the process of unscrewing / tightening the positioning clamp; therefore, when specifically setting, the tapped hole in the terminal head can be changed to a common countersunk blind hole, and the lower part of the positioning clamp can be changed to a common light shaft, and the reliability of the connection can be ensured by pressing the positioning clamp against the terminal head during use.

[0031] When using the device invented in this embodiment, the following operation process can be referred to for processing:

[0032] S1. The operator opens the cover plate of the meter terminal box, and takes out the auxiliary clamp head and the positioning clamp;

[0033] S2. The auxiliary clamp head is inserted into the guide groove from the side end of the meter terminal box;

[0034] S3. The installation position of the auxiliary clamp head is adjusted according to the position of the line to be detected, when the through hole on the auxiliary clamp head is opposite to the terminal head of the position to be detected, the auxiliary clamp head is rotated to make the clamp plate correspondingly extend into the limiting slot of the guide groove;

[0035] S4. The positioning clamp is inserted into the terminal head through the through hole and is screwed, and then the wire clamp is hand-tightened from the upper part of the positioning clamp, so that reliable electrical connection is formed between the terminal head of the meter terminal box, the positioning clamp and the wire clamp.

Claims

1. A metering terminal clamp structure for voltage testing, characterized in that: It includes a metering terminal box (1); several wiring holes (1A) are provided in the metering terminal box (1); a wiring terminal (3) is installed at the corresponding position of the wiring hole (1A); one end of the wiring terminal (3) passes through the wiring hole (1A) and is connected to the wire on the back of the metering terminal box (1), while the other end remains inside the metering terminal box (1); a movable auxiliary clip (4) is also provided on the metering terminal box (1); a through hole is opened on the auxiliary clip (4), and a positioning clip (5) is detachably installed at the through hole; one end of the positioning clip (5) is fitted against the side of the wiring terminal (3) remaining in the metering terminal box (1), and the other end is connected to the wiring clamp (6); guide grooves (1A) are opened on the upper and lower top surfaces of the metering terminal box (1). The guide groove (1A) is arranged along the length of the metering terminal box (1); the auxiliary clamp (4) is movably installed on the metering terminal box (1) through the guide groove (1A); the guide groove (1A) is a through groove with a strip-shaped upper part and a circular teardrop-shaped lower part; a slot is also provided on the guide groove (1A) at the position corresponding to the wiring hole (1A); and a clamp plate matching the slot is provided on the auxiliary clamp (4); the wiring end is a bolt with a countersunk threaded hole on the top; the positioning clamp (5) is a metal double-headed screw structure, and an insulating sleeve (5A) is fixed in the middle of the positioning clamp (5); the wiring clamp (6) is a wing screw; the hand-tightening end of the wing screw is supported by insulating material, and a connecting wire is installed at its tail.

2. The metering terminal clamp structure for voltage testing according to claim 1, characterized in that: A cover plate (2) is also hinged to the outside of the metering terminal box (1); the cover plate (2) is a plate-shaped structure made of transparent plastic material.

3. The metering terminal clamp structure for voltage testing according to claim 1, characterized in that: The auxiliary card head (4) is a hook-shaped plate structure with a cross-sectional shape similar to "η", and the position of the through hole on the auxiliary card head (4) corresponds to the position of the wiring hole on the metering terminal box (1).

4. The metering terminal clamp structure for voltage testing according to claim 1, characterized in that: The vertical length of the auxiliary card head (4) shall not exceed half the height of the inner cavity of the metering terminal box (1).

5. The metering terminal clamp structure for voltage testing according to claim 1, characterized in that: A storage compartment for placing two auxiliary card heads (4) and several positioning card pieces (5) is provided on the outside of the metering terminal box (1).

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